单项选择题

A．Do his research on closely related topics.
B．Spend more time in the library.
C．Write just one paper for all his classes.
D．Drop one of his courses.
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单项选择题
A．It looks attractive.B．It tastes delicious.C．It is not expensive.D．They want to imitate their heroes.
A．It looks attractive.
B．It tastes delicious.
C．It is not expensive.
D．They want to imitate their heroes.
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